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between which and the ear-coverts is a stripe of buff; there is also a 
line of buff behind the eye; crown of the head brown; back of the 
neck, upper surface, and two middle tail-feathers golden-green ; upper 
tail-coverts narrowly edged with grey; basal portion of the inner 
webs and the shafts of the four lateral tail-feathers rich reddish-buff 
approaching to chestnut, the remainder of these feathers being black, 
tipped with white ; bill black, except the base of the under mandible, 
which is yellow. 
Total length 44 inches; bill 13; wing 14; tail 2}. 
Remark.—This species is much smaller than the G. hirsuta of 
Trinidad and the eastern coast of America. It has also a much 
greater amount of black colour in its tail; this organ, in fact, when 
closed and viewed from beneath, appears to be entirely black, the 
under coverts concealing the buff colouring at its base. I possess two 
specimens of this bird, one of which, a very fine one, was received 
from the upper Rio Negro; the other from the Napo. 
PHAETHORNIS ZONURA, Gould. 
Crown of the head brown ; back of the neck, back, and shoulders 
bronzy-green ; rump and upper tail-coverts rich reddish-buff ; all the 
under surface buff, palest on the throat ; three outer tail-feathers on 
each side black at the base, with rich buffy tips; the fourth feather 
the same except at the tip, where the outer half is buff and the inner 
half white ; the two central prolonged feathers black at the base, largely 
tipped with white ; bill black, except the basal half of the lower man- 
dible, which is either yellow or flesh-colour ; feet yellow. 
Total length 32 inches; bill 1; wing 13; tail 12. 
Hab. Peru, where it was procured by M. Warszewicz. 
Remark.—This is a fine and very distinct species; it is perhaps 
most nearly allied to P. griseogularis ; it is, however, a much larger 
bird, and has its tail much more strongly marked. In fact, the tail must 
show very conspicuously when outspread, from the strong contrast 
which the black basal portion offers to the buff tips and the rich 
rufous colouring of the rump and upper tail-coverts. It belongs to 
that section of the genus Phaéthornis to which Prince Bonaparte 
has given the subgeneric name of Pygmornis. 
AUGASMA SMARAGDINEUM, Gould. 
Crown of the head and throat glittering greenish-blue, imper- 
ceptibly passing into the glittering green at the breast ; back of the 
neck and upper surface golden-green ; upper tail-coverts grass-green ; 
under tail-coverts green inclining to purple on some of the feathers ; 
thighs brown; tail bluish-black, the two outer feathers on each 
side slightly tipped with white; bill black, with the exception of the 
basal half of the under mandible, which is flesh-colour. 
Total length 32 inches; bill 2; wing 21; tail 14. 
Hab. Brazil. 
Remark.—This bird is about the size of Thalurania furcata ; it is 
therefore a rather large species ; it is also an elegantly formed bird. 
Those who are acquainted with the 7. chlorocephala of M. Bourcier 
No. 436.—PrRocEEDINGS OF THE ZOOLOGICAL SOCIETY. 
